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milliohm-meter-with-scpi-command-keypad-lock

Milliohm Meter With SCPI Command (Keypad Lock)

ID: GT00YM00ZZ
Category:

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Overview

GAOTek Milliohm Ohmmeter with SCPI Command (Keypad Lock) uses high-performance processors and is equipped with 3.5″ TFT LCD smart screen handheld meter. It can guarantee 0.05 % accuracy even under the condition that the testing speed is under 15t/s. It is equipped with a mini-USB interface to apply remote control, data acquisitions and analysis with long time accuracy and convenient measurements of passive components to achieve with wide measurement range from 10 μΩ to 20 MΩ and maximum reading of 20000. It can guarantee 0.05 % accuracy even under the condition that the testing speed is under 15t/s. Its unique current testing mode can adapt different testing requirements like high-ohm, medium-ohm, low-ohm tester; switch connect, connector contact, relay coil and contact resistance; Transformer, Inductor, motor, deflection coil winding resistance, wire resistance. The metal winding resistance of vehicle, vessels, and airplane; PCD line and hole, etc.

Key Features

  • Portable design with dual-color protective cast shell
  • Automatic power off function
  • Comparator function: GD/NG Show
  • 3.5 inches, True color 16 M, TFT-LCD Display
  • Auto Zero – Adjust for each range
  • Four-terminal resistance measurement
  • Mini-USB interface
  • SCPI compatible command sets
  • Keypad lock function
  • Background- lightness adjustment function
  • Battery and external power supply
  • Automatic shut down

Technical Specifications

Temperature 73.4 °F  ±41 °F (23 °C  ±5 °C)
Humidity ≤ 65 % RH
Correction short-circuit clear zero
Warming Time >60 min
Adjustment Time 12 months
Working Environment  
Normal Temperature 59 °F to 95 °F (15 °C to 35 °C)
Working Temperature 50 °F to 104 °F (10 °C to 40 °C)
Storage Temperature 32 °F to 122 °F (0 °C to 50 °C)
Nominal Humidity < 80 % R.H.
Working Humidity 10 % to 90 % R.H.
Storage Humidity 10 % to 90 % R.H.
High Current Mode  
Speed Fast-30 times/sec

Med-15 times/sec

Slow-3 times/sec

Dimensions 5.12 in x 8.29 in x 1.49 in

(130.23 mm x 210.76 mm x 37.88 mm)

 

Weight  1.10 lbs (500 g)
Working Time ≥ 8 h @ 25 % Brightness
Temperature and humidity range: 59 °F to 95 °F (15 °C to 35 °C), 80 % RH or less
Storage temperature and humidity range: 50 °F to 104 °F (10 °C to 40 °C), 10 % to 90 % RH

USB Host Port

  1. Mini-USB Slave Port
  2. Reserved Interfaces
  3. Power Adaptor

 Power Supply

The instrument can be powered by Li battery. When the battery is low, only power adaptor can charge the battery.

Test Slots

Insert the cable box into test slots.

Charge the battery

Use the power adaptor to charge the battery. The Power key is orange when charging the battery even the instrument is turned off. When the battery is full the indicator is out.

Power key is orange when charging

 Turn ON/OFF:        

To turn ON/OFF the instrument press the power key

<MEAS DISPLAY>Page

  • Press [MEAS] to enter <MEAS DISPLAY>Page.
  • The [MEAS] page includes following setup:
  • Trigger
  • Range
  • Mode– Current Mode
  • Speed – Test Speed
  • Comparator– Sorting Settings
  • Beep – Beep Settings

[TRIGGER]:

It includes three settings:

  • Internal Trigger
  • Manual Trigger
  • BUS Trigger

Trigger Setting:

Trigger  
Internal Internal trigger
Manual Press the [Enter] key once, the instrument runs a test cycle
BUS The instrument runs a test cycle by receiving RS232 trigger command.

 Procedure to set the trigger

Step 1 Press [Meas] key to enter <MEAS DISPLAY> page
Step 2 Use cursor keys to select [TRIGGER] field
Step 3 INT Automatic Internal trigger
  MAN Manual trigger by pressing [Trig] key
  BUS BUS trigger by RS-232 SCPI command

Resistance [RANGE]

It has three range modes:

  • AUTO range
  • Manual range
  • Nominal range

Resistance Ranges:

Range Description Pros Cons
AUTO Automatically.

Impedance range is automatically set by selecting the best range

Convenient Test speed is slower than manual ranging
HOLD The instrument will always use the user-specified range Highest speed Set the range initially
NOMINAL Automatically

Select the best range according to nominal value

Best mode for sorting Only available in sorting mode

Resistance Measurement Range

Range Range Name Measurement Range
9 20MΩ 2MΩ ~20MΩ
8 2MΩ 200kΩ ~2MΩ
7 200kΩ 20kΩ ~200kΩ
6 20kΩ 2kΩ ~20kΩ
5 2kΩ 200Ω ~ 2kΩ
4 200Ω 20Ω ~ 200Ω
3 20Ω 2Ω ~ 20Ω
2 200mΩ ~ 2Ω
1 200mΩ 20mΩ ~ 200mΩ
0 20mΩ 0 ~ 20mΩ

Procedure of setting the range

Procedure to set the trigger:

Step 1 Press [Meas] key to enter measurement page
Step 2 Use the cursor key to select [RANGE]
Step 3 AUTO Auto range
  HOLD Current range is hold
  NOMINAL Select the range according to resistance nominal value [ResNom]
  INCR+ Increase range
  DECL- Decline range

The DC voltage measurement range cannot be selected. Instrument always use automatic mode.

Comparator [COMP]

Set the comparator parameter in <SETUP> page and the page is about how to turn on/off the comparator.

Step 1 Press [Setup] key to enter measurement range
Step 2 Use the cursor key to select [COMP] field
Step 3 OFF Comparator off
ON Comparator on

[BEEP] Feature

Procedure to set the beep

Step 1 Press [Meas] key to enter measurement range
Step 2 Use the cursor key to select [SPEED] field
Step 3 OFF Turn beep off
GD Beep while pass
NG Beep while fail

Icons on <MEAS Display>

Icon Description
  Powered by Li battery
  Powered by external power supply
  USB-Disk is available
H Hold current data

< SETUP> page

Press [Setup] key to enter <SETUP>page.

<SETUP DISPLAY> page

Press [Setup] to enter <SETUP DISPLAY>page.

In <SETUP DISPLAY> page, the Instrument does not display test result and sorting result, testing is not in progress.

  • BAUD – Select baud rate
  • REL – Temperature Compensation
  • TC-PAR – Input temperature coefficient
  • TC-TEP – Input the reference temperature

Room Temperature Calibration

As the temperature probe was installed inside the instrument, it will cause deviation in measuring, especially in highest brightness. You need to calibrate the room temperature.

  • Procedure to calibrate temperature:
Step 1 Press[Setup]to enter <SETUP DISPLAY>page
Step 2 Select [TEMP CALIBRATE]
Step 3 Select [OK]
Step 4 Input the temperature value and press [Enter] to finish.

Reset Room Temperature Calibration Factor

To reset the temperature calibration Factor that set at [TEMP CALIBRATE]

  • Procedure to reset temperature:
Step 1 Press [Setup] to enter <SETUP DISPLAY>page
Step 2 Press [TEMP RESET]
Step 3 Press [OK] to finish temperature reset

Front Panel Summary:

<MEAS DISPLAY> Page

Press [Meas] key to enter <MEAS DISPLAY>Page.

The <MEAS DISPLAY> page includes following setup:

Trigger Mode [TRIGGER]

Measurement Range [RANGE]

Test Speed [SPEED]

Comparator [COMP] ON/OFF

 [BEEP] Feature

Soft-key VIEW DATA – To Enter [VIEWDATA] page

Soft-key SAVE DATA – To Store measurement result into internal flash disk

<MEAS DISPLAY>Page

[TRIGGER]

SCPI Command: TRIGGER: SOURCE {INT, MAN, BUS}

SCPI Query Command: TRIGGER: SOURCE?

It supports four trigger modes: INT (internal), EXT, MAN (manual) and BUS (RS -232)

Procedure to set the trigger:

Step 1 Press [Meas] key to enter <MEAS DISPLAY>Page

Step 2 Use cursor keys to select [TRIGGER] field

Step 3 INT Automatic Internal trigger

MAN Manual Trigger by pressing [Trig] key

BUS Trigger by RS232 SCPI command

[RANGE]

SCPI Command: FUNCTION: RANGE {<range number>, min, max}

SCPI Command: FUNCTION: RANGE: MODE {AUTO, HOLD, NOMINAL}

SCPI Query Command: FUNCTION: RANGE

SCPI Query Command: FUNCTION: RANGE: MODE

Measurement Speed [SPEED]

SCPI Command: FUNCTION: RATE {SLOW, MED, FAST}

SCPI Query Command: FUNCTION: RATE

SLOW, MED, FAST and ULTRA speed mode can be selected.

SLOW mode will result in more stable and accurate measurement result.

The following speed is measured in range-hold mode and comparator is ON:

SLOW: 1 times/sec (1s)

MED:  5 times/sec (100ms)

FAST: 0 times/sec (33ms)

[BEEP] Feature

SCPI Command: COMPARATOR: BEEP {OFF, GD, NG}

SCPI Query Command: COMPARATOR: BEEP

<VIEW DATA> page

The measurement result can be stored in internal nonvolatile memory by press the [SAVE DATA] soft-key in <MEAS DISPLAY> page.

Over 500 sets data can be saved.

The format of measurement result is:

[Resistance][Voltage][Date][Time]

You can review the saved data on the <VIEW DATA> page by pressing the

[VIEW DATA] soft-key in <MEAS DISPLAY> page.

<SYSTEM CONFIG> page

Press [SYSTEM] bottom soft-key to enter <SYSTEM CONFIG> page.

  • LANGUAGE – Choose English or Chinese Language
  • DATE/TIME
  • ACCOUNT
  • BEEP Feature
  • BAUD – RS-232/RS-485 Communication Baud Rate
  • RS-485 Address
  • SHAKE HAND – RS-232/RS-485 Shake Hand
  • RESULT SEND – Acquire the test result by FETCH? Command or auto send

All settings in <SYSTEM CONFIG> will be saved into internal flash disk automatically

<VIEW DATA> page

The measurement result can be stored and internal nonvolatile memory by press the [SAVE DATA] soft-key in <MEAS DISPLAY> page. Over 500 sets data can be saved. The format of measurement result is:

[Resistance][Voltage][Date][Time]

You can review the saved data on the <VIEW DATA> page by pressing the [VIEW DATA] soft-key in <MEAS DISPLAY> page

  • SAVE TO DISK – Store all data into USB Disk
  • RESET – The data will be stored from the start of the table.
  • FORMAT – To format the internal nonvolatile memory disk, all data will be lost
  • PAGE – Jump to the provided page

         < SETUP> page

  • Press [Setup] key to enter <SETUP>page.
  • In <SETUP> page, the Instrument does not display measurement result and
  • Comparator result, testing is not in progress.
  • The <SETUP> page includes following setup:
  • Trigger Mode [TRIGGER]
  • Measurement Range [RANGE]
  • Measurement Speed [SPEED]
  • BEEP Feature
  • Soft-key CLEAR ZERO – Clear Zero Correction
  • R-COMP – AC Resistance Sorting Methods
  • V-COMP– DC Voltage Sorting Methods
  • R-NOMINAL – Input Resistance Nominal Value
  • R-LOWER – Input Resistance Lower Limit
  • R-UPPER – Input Resistance Upper Limit
  • V-NOMINAL – Input Voltage Nominal Value
  • V-LOWER – Input Voltage Lower Limit
  • V-UPPER – Input Voltage Upper Limit
  • Some settings can be also set up in <MEAS DISPLAY> page
Applications
All kinds of low, medium, high resistor
Switch contact resistance
Enamel-insulated wire resistance
Connector Contact
Relay/switch connector contacts
Transformer, Inducer, Motor, Deflection coil winding resistance
Welding Spot
Wire resistance
Metal riveting resistance of vehicle, vessels, airplane
Pure resistance
The resistance of motor and transformer
Printed board line and hole resistance
Low resistance character of Electromechanical Components

 

Questions from our customers

  1. A

    This meter has a wide measurement range from 10 μΩ to 20 MΩ.

  2. A

    There are 3 Resistance range modes: Auto, Manual, and Nominal modes.

  3. A

    Working time for this meter is ≥ 8 h at 25 % Brightness.

Only registered users are eligible to enter questions